Large amount of changes and additions

The official name of this port is now 'MicroPython for K210'
  - all refferences to 'maixpy' are removed

Build system
  - most port specific options can now be configured using menuconfig
  - added --menuconfig option to BUILD.sh
  - build on Mac OSX and arm platforms is now supported and toolchains provided

Changed memory management support
  - if not using KPU, full 8 MB of memory can be used

Updated 'kflash.py' with https://github.com/loboris/ktool
  - new flash tool name is 'ktool.py', but the old name 'fflash.py' can still be used

FreeRTOS updated
  - many improvements
  - added 'mbedtls' library
  - added 'heap_5' support

Using two MicroPython instances improved
  - better inter-instances communication

SPI Flash support, including internal file system improved
  - SPI Flash speed can be changed from MicroPython
  - added methods for reading Flash chip JEDEC ID and unique ID

MicroPython modules improved, some bugs fixed, new modules added
  - almost all modules improved
  - 'Display' module:
    - added support for ePaper displays
    - added support for hershey vector fonts
    - added PNG support
  - Network support improved
  - 'machine' module:
    - added functions 'state', 'sramread', 'addrof', 'k210_id', 'flash_serial', 'flash_speed'
  - added 'camera' module with full support for OV2640 and OV5640
  - added 'ulab' module

.cproject

@@ -51,6 +51,8 @@
 
                                     <listOptionValue builtIn="false" value="&quot;${PWD}/k210-freertos/platform/sdk/kendryte-freertos-sdk/lib/freertos/include&quot;"/>
 
+                                    <listOptionValue builtIn="false" value="&quot;${PWD}/k210-freertos/platform/sdk/kendryte-freertos-sdk/lib/utils/include&quot;"/>
+
                                     <listOptionValue builtIn="false" value="&quot;${PWD}/k210-freertos/platform/sdk/kendryte-freertos-sdk/lib/drivers/include&quot;"/>
 
                                     <listOptionValue builtIn="false" value="&quot;${PWD}/k210-freertos/platform/sdk/kendryte-freertos-sdk/third_party/fatfs/source&quot;"/>
@@ -70,6 +72,8 @@
                                     <listOptionValue builtIn="false" value="&quot;${PWD}/kendryte-toolchain/riscv64-unknown-elf/include&quot;"/>
 
                                     <listOptionValue builtIn="false" value="&quot;${PWD}/kendryte-toolchain/lib/gcc/riscv64-unknown-elf/8.2.0/include&quot;"/>
+
+                                    <listOptionValue builtIn="false" value="&quot;${PWD}/kendryte-toolchain/lib/gcc/riscv64-unknown-elf/8.3.0/include&quot;"/>
 
                                 </option>
 
@@ -122,6 +126,8 @@
                                     <listOptionValue builtIn="false" value="&quot;${PWD}/kendryte-toolchain/riscv64-unknown-elf/include&quot;"/>
 
                                     <listOptionValue builtIn="false" value="&quot;${PWD}/kendryte-toolchain/lib/gcc/riscv64-unknown-elf/8.2.0/include&quot;"/>
+
+                                    <listOptionValue builtIn="false" value="&quot;${PWD}/kendryte-toolchain/lib/gcc/riscv64-unknown-elf/8.3.0/include&quot;"/>
 
                                 </option>
 
@@ -231,8 +237,6 @@
 
                 <buildCommand>${PWD}/k210-freertos/BUILD.sh</buildCommand>
 
-                <buildArguments/>
-
                 <stopOnError>true</stopOnError>
 
                 <useDefaultCommand>false</useDefaultCommand>
@@ -245,6 +249,8 @@
 
                 <buildCommand>${PWD}/k210-freertos/CLEAN.sh</buildCommand>
 
+                <buildArguments/>
+
                 <stopOnError>true</stopOnError>
 
                 <useDefaultCommand>false</useDefaultCommand>
@@ -271,7 +277,9 @@
 
                 <buildCommand>${PWD}/k210-freertos/BUILD.sh</buildCommand>
 
-                <buildArguments>-j8</buildArguments>
+                <buildArguments>-j16</buildArguments>
+
+                <buildTarget/>
 
                 <stopOnError>true</stopOnError>
 
@@ -285,7 +293,9 @@
 
                 <buildCommand>${PWD}/k210-freertos/BUILD.sh</buildCommand>
 
-                <buildArguments>-v -j8</buildArguments>
+                <buildArguments>-v -j16</buildArguments>
+
+                <buildTarget/>
 
                 <stopOnError>true</stopOnError>
 
@@ -301,7 +311,19 @@
 
                 <buildArguments>-d -j8</buildArguments>
 
-                <buildTarget/>
+                <stopOnError>true</stopOnError>
+
+                <useDefaultCommand>false</useDefaultCommand>
+
+                <runAllBuilders>true</runAllBuilders>
+
+            </target>
+
+            <target name="Menuconfig" path="" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
+
+                <buildCommand>mate-terminal</buildCommand>
+
+                <buildArguments>--working-directory="${PWD}k210-freertos" -e "./BUILD.sh --menuconfig" &amp;</buildArguments>
 
                 <stopOnError>true</stopOnError>
 

.project

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <projectDescription>
-	<name>MaixPy-FreeRTOS</name>
+	<name>MicroPython_K210_LoBo</name>
 	<comment></comment>
 	<projects>
 	</projects>

.settings/language.settings.xml

@@ -9,6 +9,8 @@
 
             <provider-reference id="org.eclipse.cdt.core.ReferencedProjectsLanguageSettingsProvider" ref="shared-provider"/>
 
+            <provider copy-of="extension" id="org.eclipse.cdt.managedbuilder.core.GCCBuildCommandParser"/>
+
             <provider-reference id="org.eclipse.cdt.managedbuilder.core.MBSLanguageSettingsProvider" ref="shared-provider"/>
 
         </extension>

firmware/MPyTerm.py

@@ -58,7 +58,7 @@ def __init__(self, baudrate=115200, device='/dev/ttyUSB0', rst=0, clr=False):
         self.DEVICE     = device
         self.BAUDRATE   = baudrate
         self.ESCAPECHAR = "\033"
-        self.VERSION = "5.1.3"
+        self.VERSION = "5.1.4"
         self.ShutdownReceiver = False
         self.ReceiverToStdout = True
         self.DefaultTimeout = 0.1
@@ -102,6 +102,10 @@ def __init__(self, baudrate=115200, device='/dev/ttyUSB0', rst=0, clr=False):
                 self.uart.dtr = True
             else:
                 self.uart.write(b'\r\n')
+            time.sleep(0.1)
+            #self.uart.dtr = False
+            #self.uart.rts = False
+            #time.sleep(0.1)
 
         except Exception as e:
             raise Exception(self.TCLR['RED']+"Accessing "+self.TCLR['WHITE'] + self.DEVICE + " "+self.TCLR['RED']+"failed\r\n"+self.TCLR['WHITE']+"PyTerm exit"+self.TCLR['NORMAL']+"\r\n")

firmware/README.md

@@ -1,17 +1,21 @@
 # MicroPython for Kendryte K210
 
 
+Three prebuilt firmwares are provided:
+
+* `default` default configuration, no sqlite module, one MicroPython task; in this directory
+* `sqlite`  default configuration, sqlite module included, one MicroPython task; in `sqlite` directory
+* `twotasks`  no KPU (8 MB SRAM used), sqlite module included, two MicroPython task; in `twotasks` directory
+
 To flash the pre-built firmware to your K210 board, run (in this directory):
 
 ```
-./kflash.py -p /dev/ttyUSB0 -b 2000000 -t MaixPy.bin
+./kflash.py -p /dev/ttyUSB0 -b 2000000 -t MicroPython.bin
 ```
 
 Change */dev/ttyUSB0* to the port used to connect to the board if needed.<br>
-`MaixPy.bin` is the default firmware name. Other firmware names can be used.
-
-Two firmwares are provided, one with sqlite3 compiled and one without it.<br>
+You can replace `MicroPython.bin` with `sqlite/MicroPython.bin` or `twotasks/MicroPython.bin` to flash another firmware.
 
-`MaixPy.kfpkg` is also provided which contains prebuilt LittleFS internal file system.<br>
-To flash it, just replace `MaixPy.bin` with `MaixPy.fpkg`.
+`MicroPython.kfpkg` is also provided which contains prebuilt LittleFS internal file system.<br>
+To flash it, just replace `MicroPython.bin` with `MicroPython.kfpkg`.